Eco Power Towns vs SumLock
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Eco Power Towns
A strategy puzzle game where players build and manage green energy sources to power a small town. Optimize your layout, research upgrades, and reach energy goals across diverse terrains. Enjoy a peaceful, icon-driven experience with no ads or tracking.
- Build solar, wind, tidal, and biomass energy sources
- Manage limited resources and optimize layouts
- Research upgrades for improved efficiency
- Icon-driven gameplay with no text
- Handcrafted levels with increasing challenge
- Peaceful lo-fi music and minimalist art style
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Can you power a tiny town.. sustainably? Eco Power Towns is a thoughtful strategy puzzle where every placement matters. Generate clean energy using solar, wind, tidal and biomass technologies; all while managing your limited resources. Upgrade, research, and optimize your layout to reach the energy goal and light up all the cozy homes. What to expect? - Contains no text at all: the entire game is icon-driven and intuitive. - Build solar panels, windmills, biomass plants, tidal generators and more. - Hints are available in case you get stuck on a level. - Reach energy goals before you run out of resources - Light up cozy houses across forests, swamps, hills, and rocky terrain - Unlock research upgrades to improve your production efficiency - Explore handcrafted levels of increasing challenge - Solve satisfying puzzles that reward careful planning - Enjoy peaceful lo-fi beat vibes and a clean, minimalist art style - A paid game: no ads, no tracking, no distractions, no data collected - Haptic Feedback - Game Center & Achievements I'm a solo game developer who made this game with a lot of care and love. I hope Eco Power Towns brings you a little joy, a little challenge, and a lot of cozy energy.
SumLock
Engage your mind with a unique number puzzle game that combines logic, arithmetic, and deduction. Crack a 6-digit code within limited attempts, ensuring each guess uses unique digits that sum to a target value. Enjoy a satisfying brain workout with color-coded clues and build your winning streak.
- Crack 6-digit master code
- Unique digit and sum challenges
- Color-coded feedback clues
- Build winning streaks
- Daily brain workout
- Haptic feedback
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Have you ever wanted a brain teaser that perfectly combines logic, math, and the pure satisfaction of cracking a safe? SumLock is the answer. Most puzzle games rely entirely on vocabulary or repetitive patterns. SumLock is different. It’s a beautifully dark, immersive numbers game where you use deduction and quick arithmetic to break open a 6-digit master code. Crack the Master Code: You have exactly 4 attempts to break the lock. Each row forces you to think strategically, shifting your digits as you hunt for the hidden combination. The Ultimate Math Challenge: There's a catch! Every single guess must consist of 6 completely unique digits, and their total sum must exactly match the Target Sum displayed at the top of your screen. It's a brilliant double-layer challenge for your mind. Color-Coded Clues: Hit "LOCK IN" to submit your combination and see how the vault reacts. Green means the digit is in the perfect spot; Blue means it's part of the code but needs to move; Red means it's not in the code at all. Build Your Winning Streak: Keep your mind sharp and see how many locks you can open in a row. Save your records automatically and push yourself to beat your personal best streak. Why SumLock? Because giving your brain a quick daily workout should be satisfying, crisp, and fun. Complete with clean haptic feedback, daily reminders, and a distraction-free layout, SumLock is the perfect ritual to test your reasoning skills. Download SumLock today—the ultimate challenge to see if you can break the code.
Screenshots
Verdict
The clearest difference is rating: SumLock at 5.0 against Eco Power Towns's 4.4. SumLock also leads on price ($0.99 vs $1.99). Eco Power Towns's advantage is ads (none vs shown) and ratings volume (89 vs 1). On in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Eco Power Towns costs $1.99 and SumLock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SumLock holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Eco Power Towns has 89 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Eco Power Towns | SumLock |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 4.4 (89 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 57.4% of reviews | — |
| Number of ratings | 89 — better | 1 |
| Update frequency | Monthly | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Tepes Ovidiu | H Valeur |
Bugs and requests
Eco Power Towns
Reported bugs
2 issues- Level 3 is very difficult to understand
- Randomly placing solar panels is not fun
Requested features
2 requests- More levels please!
- Tutorial or reference to explain the chart
SumLock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eco Power Towns
No in-app purchases
SumLock
No in-app purchases









